Antiferromagnetic element Mn modified PtCo truncated octahedral nanoparticles with enhanced activity and durability for direct methanol fuel cells

doi:10.1007/s12274-019-2479-4

	Antiferromagnetic element Mn modified PtCo truncated octahedral nanoparticles with enhanced activity and durability for direct methanol fuel cells
	Zhang, Qiqi 5; Liu, Jialong 4; Xia, Tianyu 3; Qi, Jie 5; Lyu, Haochang 5; Luo, Baoyuan 5; Wang, Rongming 2; Guo, Yizhong 1; Wang, Lihua 1; Wang, Shouguo 2,5
刊名	NANO RESEARCH
	2019-10-01
卷号	12 期号:10 页码:2520-2527
关键词	Mn-PtCo truncated octahedral nanoparticles antiferromagnetic element magnetic properties electrocatalytic performance
ISSN号	1998-0124
DOI	10.1007/s12274-019-2479-4
英文摘要	Pt-based magnetic nanocatalysts are one of the most suitable candidates for electrocatalytic materials due to their high electrochemistry activity and retrievability. Unfortunately, the inferior durability prevents them from being scaled-up, limiting their commercial applications. Herein, an antiferromagnetic element Mn was introduced into PtCo nanostructured alloy to synthesize uniform Mn-PtCo truncated octahedral nanoparticles (TONPs) by one-pot method. Our results show that Mn can tune the blocking temperature of Mn-PtCo TONPs due to its antiferromagnetism. At low temperatures, Mn-PtCo TONPs are ferromagnetic, and the coercivity increases gradually with increasing Mn contents. At room temperature, the Mn-PtCo TONPs display superparamagnetic behavior, which is greatly helpful for industrial recycling. Mn doping can not only modify the electronic structure of PtCo TONPs but also enhance electrocatalytic performance for methanol oxidation reaction. The maximum specific activity of Mn-PtCo-3 reaches 8.1 A center dot m(-2), 3.6 times of commercial Pt/C (2.2 A center dot m(-2)) and 1.4 times of PtCo TONPs (5.6 A center dot m(-2)), respectively. The mass activity decreases by only 30% after 2,000 cycles, while it is 45% and 99% (nearly inactive) for PtCo TONPs and commercial Pt/C catalysts, respectively.
资助项目	National Natural Science Foundation[51625101] ; National Natural Science Foundation[51431009] ; National Natural Science Foundation[51801188] ; National Natural Science Foundation[51701202] ; State Key Development Program for Basic Research of China[2015CB921401] ; Fundamental Research Funds for the Central University Universities of China[FRF-TP-16-001C2] ; China Postdoctoral Science Foundation[2018M632792] ; Startup Research Fund of Zhengzhou University[32210815] ; Bejing Natural Science Foundation[Z180014]
WOS关键词	HIGHLY EFFICIENT ; MAGNETIC-PROPERTIES ; ANISOTROPIC GROWTH ; CO ; ALLOY ; TRANSITION ; PLATINUM ; NI ; OXIDATION ; ELECTROCATALYST
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000489896700012
资助机构	National Natural Science Foundation ; National Natural Science Foundation ; State Key Development Program for Basic Research of China ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central University Universities of China ; Fundamental Research Funds for the Central University Universities of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Startup Research Fund of Zhengzhou University ; Startup Research Fund of Zhengzhou University ; Bejing Natural Science Foundation ; Bejing Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; State Key Development Program for Basic Research of China ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central University Universities of China ; Fundamental Research Funds for the Central University Universities of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Startup Research Fund of Zhengzhou University ; Startup Research Fund of Zhengzhou University ; Bejing Natural Science Foundation ; Bejing Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; State Key Development Program for Basic Research of China ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central University Universities of China ; Fundamental Research Funds for the Central University Universities of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Startup Research Fund of Zhengzhou University ; Startup Research Fund of Zhengzhou University ; Bejing Natural Science Foundation ; Bejing Natural Science Foundation ; National Natural Science Foundation ; National Natural Science Foundation ; State Key Development Program for Basic Research of China ; State Key Development Program for Basic Research of China ; Fundamental Research Funds for the Central University Universities of China ; Fundamental Research Funds for the Central University Universities of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Startup Research Fund of Zhengzhou University ; Startup Research Fund of Zhengzhou University ; Bejing Natural Science Foundation ; Bejing Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93883]
专题	中国科学院地质与地球物理研究所
通讯作者	Xia, Tianyu; Wang, Shouguo
作者单位	1.Beijing Univ Technol, Beijng Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China 2.Univ Sci & Technol Beijing, Inst Multidisciplinary Innovat, Beijing 100083, Peoples R China 3.Zhengzhou Univ, Sch Phys & Engn, Key Lab Mat Phys, Minist Educ, Zhengzhou 450052, Henan, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qiqi,Liu, Jialong,Xia, Tianyu,et al. Antiferromagnetic element Mn modified PtCo truncated octahedral nanoparticles with enhanced activity and durability for direct methanol fuel cells[J]. NANO RESEARCH,2019,12(10):2520-2527.
APA	Zhang, Qiqi.,Liu, Jialong.,Xia, Tianyu.,Qi, Jie.,Lyu, Haochang.,...&Wang, Shouguo.(2019).Antiferromagnetic element Mn modified PtCo truncated octahedral nanoparticles with enhanced activity and durability for direct methanol fuel cells.NANO RESEARCH,12(10),2520-2527.
MLA	Zhang, Qiqi,et al."Antiferromagnetic element Mn modified PtCo truncated octahedral nanoparticles with enhanced activity and durability for direct methanol fuel cells".NANO RESEARCH 12.10(2019):2520-2527.